CN112320866A

CN112320866A - Dosage control method for sewage treatment

Info

Publication number: CN112320866A
Application number: CN202011104853.1A
Authority: CN
Inventors: 高琴
Original assignee: Yishui Hongyu Environmental Science And Technology Center
Current assignee: Yishui Hongyu Environmental Science And Technology Center
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-02-05

Abstract

The invention discloses a control method for dosing amount in sewage treatment, relates to the technical field of sewage treatment, and solves the problems that most of existing dosing spray-discharge parts are statically installed, so that the spraying range is limited and the uniformity of spraying is poor. A sewage treatment dosing control method is realized by sewage treatment dosing control equipment, liquid medicine is filled into a medicine containing barrel during use, then a motor is controlled to rotate forwardly and start through a start button, a thread rotating shaft can push a sealing plug to slide downwards to extrude and discharge the liquid medicine in the medicine containing barrel, the liquid medicine in the medicine containing barrel can be sprayed out through a sprinkling disc after being discharged, the thread rotating shaft can also drive the sprinkling disc in a rotating mode while the sealing plug slides up and down through the thread pushing, the sprinkling disc can rotate and scatter the liquid medicine on the inner water storage surface of the sewage treatment equipment, and the liquid medicine can be scattered in a radial and uniform mode in sewage under the throwing and sprinkling effects of rotating centrifugal force, so that the liquid medicine can be fully and comprehensively mixed with the sewage in a contact mode, and the dosing effect is good.

Description

Dosage control method for sewage treatment

Technical Field

The invention relates to the technical field of sewage treatment methods, in particular to a control method for the dosage of sewage treatment.

Background

The sewage treatment is an effective process method for various economic, reasonable, scientific and industrial waste water of urban domestic sewage. The sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and the modern sewage treatment technology is divided into primary treatment, secondary treatment and tertiary treatment according to the treatment degree. In the secondary treatment, a dosing device is often used, and a flocculating agent is added into the sewage through the dosing device to carry out decontamination treatment.

For example, patent number is CN 201611185091.6's patent, discloses a sewage treatment charge device, including the medical kit, the bottom of medical kit is equipped with the discharge gate, still includes sewage pipe, air-supply line and ejection of compact subassembly, the one end and the sewage pipe intercommunication of air-supply line, the other end and external intercommunication, ejection of compact subassembly include wind wheel, first transmission shaft, action wheel and with the action wheel meshing from the driving wheel, the wind wheel passes through with the action wheel first transmission shaft coaxial coupling, the wind wheel rotates and sets up in the air-supply line, from the driving wheel rotation setting in the bottom of medical kit, should be equipped with the bin outlet from the driving wheel, and when rotating from the driving wheel, the bin outlet is periodic and discharge gate intercommunication. Compare with traditional charge device, this scheme simple structure, the cost is with low costs. Simultaneously, the flow of this scheme utilization sewage itself produces the negative pressure, and then realizes charge device automatic reagent feeding, need not other power unit, and the effectual energy consumption that has reduced has practiced thrift the energy.

The row's of spouting part of current medicine equipment is mostly for the installation of stewing, leads to it to spray the limited and cloth homogeneity of scope and is comparatively poor, causes the liquid medicine can not comparatively comprehensive abundant with the inside splendid attire sewage contact of equipment and mixes, adds the medicine result of use not good enough, and equipment artifical participation step is more when the operation in addition, uses comparatively trouble inconvenient problem.

Disclosure of Invention

The invention aims to provide a control method for dosing amount in sewage treatment, which aims to solve the problems that most of the existing dosing spray-discharge parts are statically installed, so that the spraying range is limited and the uniformity of spraying is poor.

In order to achieve the purpose, the invention provides the following technical scheme:

a sewage treatment chemical adding amount control method is realized by sewage treatment chemical adding amount control equipment, and specifically comprises the following steps:

the end cover is locked and tightly installed on the top end opening of the sewage equipment container, when the device is idle, the sealing plug is in a lifting and pulling-out state and is arranged above the top end of the medicine containing barrel, when the device is used, liquid medicine is filled into the medicine containing barrel, then the motor is controlled to be started in a forward rotation mode through the starting button, the screw thread rotating shaft can push the sealing plug to slide downwards to extrude and discharge the liquid medicine in the medicine containing barrel, the liquid medicine in the medicine containing barrel is sprayed out through the water spraying disc after being discharged, the water spraying disc can be rotationally driven by the screw thread rotating shaft while the sealing plug is pushed to slide up and down through the screw thread through the power transmission of the third gear, the water spraying disc can rotationally and dispersedly spray the liquid medicine on the internal water storage surface of the sewage treatment equipment, and the liquid medicine can be radially and uniformly distributed in the sewage under the spraying effect of the rotary centrifugal force, so, the sealing plug can be linked and pushed to control the ship-shaped switch to be closed in the process of sliding up and out through the top wheel, the power supply of the motor is cut off, the sealing plug can be linked and meshed to drive the vertical support sliding rod to slide downwards in the process of sliding up and out through the rack, the retaining ring sliding sleeve is blocked and sealed on the water sprinkling plate, the situation that when liquid medicine is filled into the medicine containing barrel, the liquid medicine leaks out from a circle of water sprinkling holes in the water sprinkling plate is avoided, and the retaining ring is linked and driven to slide downwards through the upward sliding power of the sealing plug, so that the trouble that manual downward sliding is used for driving pushing; the dosage can be controlled by the downward pushing and sliding length of the sealing plug;

the sewage treatment dosing amount control device comprises a dosing barrel, wherein the dosing barrel comprises a vertical support square rod, a first gear, a vertical support pillar, a lifting ring and a dosing pipe, the dosing barrel is welded at the center of the top end of an end cover in a supporting mode, the center of the bottom of the dosing barrel is welded and communicated with the dosing pipe, and a sprinkling plate is sleeved and rotatably connected to the bottom section of the dosing pipe; a vertical support square rod is welded on the circumferential outer wall of the medicine containing barrel in a supporting manner, a first gear is rotatably arranged at the top end of the vertical support square rod, and a vertical support pillar is fixedly welded on the circumferential outer wall of the medicine containing barrel in a welding manner; two hanging rings which are vertically spaced are welded at the center of the bottom of the medicine containing barrel in a hanging manner, and an L-shaped support rod is welded downwards at the top end of the vertical support pillar; a round cake-shaped sealing plug is inserted into the inner part of the medicine containing barrel; a vertical support sliding rod penetrates and is inserted into the end cover through a spring pushing device, and a motor is installed on the rear side of the top end of the end cover in a locking mode; the outer wall of the circumference of the end cover is also vertically inserted with a threaded rotating shaft, the upper half section of the threaded rotating shaft is provided with external threads, and the vertical support square rods, the vertical support pillars and the threaded rotating shaft are distributed at intervals around the medicine containing barrel; the threaded rotating shaft comprises a second gear and a third gear, the lower half section of the threaded rotating shaft is sleeved with the second gear, the second gear is correspondingly in meshing transmission with the motor, and the lowest end of the threaded rotating shaft is sleeved with the third gear; the sealing plug comprises a central fulcrum shaft and a sliding sleeve, the central position of the top end of the sealing plug is supported and welded with the central fulcrum shaft, the top end of the central fulcrum shaft forms a 90-degree included angle and is vertically welded with two sliding sleeves, the sliding sleeve on the rear side slides on the threaded rotating shaft corresponding to the meshing sleeve, and the sliding sleeve on the left side slides on the vertical support pillar corresponding to the sleeve; the sealing plug also comprises a rack and a top wheel, the top end of the sealing plug is also vertically supported and welded with the rack, the rack slides up to be in meshing contact with the first gear, and the left sliding sleeve is supported and provided with the top wheel; l form vaulting pole includes ship type switch, a ship type switch is installed to the bottom tail end of L form vaulting pole, and the footpath directly corresponds about this ship type switch and the apical wheel, and goes up the pulley and push away the contact with ship type switch top, ship type switch and motor electric control are connected.

Preferably, the vertical support sliding rod comprises a check ring, the tail end of the vertical support sliding rod is fixedly welded with one check ring, a layer of rubber sealing gasket is fixedly glued on the circumferential inner wall of the check ring, and the check ring is arranged above the top end of the sprinkling disc in a sliding mode when the sprinkling disc is idle; the water sprinkling disc comprises a water guide sleeve and a fourth gear, a circle of water sprinkling holes are formed in the outer wall of the circumference of the water sprinkling disc, the top end of the water sprinkling disc is welded and communicated with the water guide sleeve, and the fourth gear is sleeved on the top end section of the water guide sleeve.

Preferably, the fourth gear is rotatably and limitedly arranged between the two lifting rings, and the medicine discharge pipe is correspondingly and rotatably connected with the water guide sleeve; the top end section of the vertical support sliding rod is provided with a row of tooth grooves, the tooth grooves are correspondingly in meshing contact with the first gear, and the fourth gear is correspondingly in meshing contact with the second gear.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the sealing plug can be in linkage engagement with the rack to drive the vertical support sliding rod to slide downwards in the upward sliding and releasing process, so that the sliding sleeve of the check ring is blocked and sealed on the water sprinkling disc, the situation that the liquid medicine leaks from a circle of water sprinkling holes on the water sprinkling disc when the liquid medicine is filled into the medicine containing barrel is avoided, and the check ring is driven to slide downwards in a linkage manner by adopting the upward sliding power of the sealing plug, so that an additional electric driving device for the check ring is omitted, the trouble that the manual downward sliding is used for driving the pushing is avoided, the use is convenient and labor-saving;

2. the thread rotating shaft can rotatably drive the fourth gear and the sprinkling disc to rotationally scatter the liquid medicine on the internal water storage surface of the sewage treatment equipment, and the liquid medicine can be radially and uniformly distributed in the sewage under the throwing action of the rotating centrifugal force, so that the liquid medicine can be more fully and comprehensively contacted and mixed with the sewage, and the medicine adding using effect is better;

3. through the power transmission of third gear, the screw thread pivot still can rotary drive watering dish when the screw thread impels the sealing plug gliding from top to bottom, and a ware is dual-purpose, and this make full use of the kinetic energy of motor saves alone for watering dish supporting electric motor alone, has reduced the weight and the cost of equipment, has promoted the price/performance ratio and is favorable to marketing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the rear three-dimensional structure of the present invention;

FIG. 3 is a schematic bottom three-dimensional structure of the present invention;

FIG. 4 is a schematic view of a cartridge of the present invention;

FIG. 5 is a schematic view of the construction of the mullion rod of the present invention;

FIG. 6 is a schematic three-dimensional view of a sprinkler plate according to the present invention;

FIG. 7 is a schematic three-dimensional structure of two rings according to the present invention;

FIG. 8 is an enlarged view of portion B of FIG. 1 according to the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 1;

in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a cartridge containing barrel; 101. a vertical support square rod; 102. a first gear; 103. a vertical support pillar; 104. a hoisting ring; 105. a medicine discharge pipe; 2. a sealing plug; 201. a central fulcrum; 202. a rack; 203. a sliding sleeve; 204. a top wheel; 3. an end cap; 4. an L-shaped strut; 401. a boat-shaped switch; 5. a motor; 6. a threaded shaft; 601. a second gear; 602. a third gear; 7. vertically supporting the sliding rod; 701. a retainer ring; 8. a watering plate; 801. a water guide sleeve; 802. a fourth gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 9, an embodiment of the present invention includes:

a control method for the dosage of sewage treatment is characterized in that: the sewage treatment chemical adding amount control method is realized by sewage treatment chemical adding amount control equipment, and specifically comprises the following steps:

the end cover 3 is locked and tightly installed on the top end opening of the sewage equipment container, the sealing plug 2 is in a lifting and pulling-off state and is arranged above the top end of the medicine containing cylinder 1 when the device is idle, medicine liquid is filled into the medicine containing cylinder 1 when the device is used, then the motor 5 is controlled to rotate forward and start through the start button, the thread rotating shaft 6 can push the sealing plug 2 to slide downwards to extrude and discharge the medicine liquid in the medicine containing cylinder 1, the medicine liquid in the medicine containing cylinder 1 can be sprayed out through the water spraying disc 8 after being discharged, the thread rotating shaft 6 can also rotate and drive the water spraying disc 8 while the thread pushes the sealing plug 2 to slide up and down through the power transmission of the third gear 602, the medicine liquid can be sprayed in a radial and uniform manner in sewage when the thread pushes the sealing plug 2 to slide up and down, the water spraying disc 8 can rotate and disperse the medicine liquid on the inner water storage surface of the sewage treatment equipment, and the medicine liquid, the medicine adding using effect is good, the sealing plug 2 can be linked, pushed and controlled to close the ship-shaped switch 401 in the process of upward sliding and pulling out through the top wheel 204, the power supply of the motor 5 is cut off, the sealing plug 2 can be linked, meshed and driven to drive the vertical support sliding rod 7 to slide downwards in the process of upward sliding and pulling out through the rack 202, the check ring 701 sliding sleeve is blocked and sealed on the water sprinkling plate 8, the situation that when the medicine liquid is filled into the medicine containing barrel 1, the medicine liquid leaks out from a circle of water sprinkling holes in the water sprinkling plate 8 is avoided, the check ring 701 is driven to slide downwards through the upward sliding force of the sealing plug 2 in a linked mode, and the trouble that; the dosage can be controlled by the downward pushing and sliding length of the sealing plug 2;

the sewage treatment dosing amount control equipment comprises a medicine containing barrel 1, wherein the medicine containing barrel 1 comprises a vertical support square rod 101, a first gear 102, a vertical support pillar 103, a hanging ring 104 and a medicine discharge pipe 105, the medicine containing barrel 1 is supported and welded at the center of the top end of an end cover 3, the center of the bottom of the medicine containing barrel 1 is welded and communicated with the medicine discharge pipe 105, and a water spraying disc 8 is sleeved and rotatably connected on the bottom section of the medicine discharge pipe 105; a vertical support square rod 101 is in top support welding on the circumferential outer wall of the medicine containing cylinder 1, a first gear 102 is rotatably installed at the top end of the vertical support square rod 101, and a vertical support pillar 103 is fixedly welded on the circumferential outer wall of the medicine containing cylinder 1; two hanging rings 104 which are vertically spaced are welded at the center of the bottom of the medicine containing barrel 1 in a hanging and supporting manner, and an L-shaped support rod 4 is welded downwards at the top end of a vertical support pillar 103; a round cake-shaped sealing plug 2 is inserted into the medicine containing barrel 1; a vertical support sliding rod 7 is inserted on the end cover 3 in a penetrating manner through a spring pushing device, and a motor 5 is installed on the rear side of the top end of the end cover 3 in a locking manner; a threaded rotating shaft 6 is also vertically inserted and installed on the circumferential outer wall of the end cover 3, external threads are formed on the upper half section of the threaded rotating shaft 6, and the vertical support square rods 101, the vertical support pillars 103 and the threaded rotating shaft 6 are distributed at intervals around the medicine containing barrel 1; the threaded rotating shaft 6 comprises a second gear 601 and a third gear 602, the second gear 601 is sleeved on the lower half section of the threaded rotating shaft 6, the second gear 601 is correspondingly in meshing transmission with the motor 5, and the third gear 602 is sleeved at the lowest end of the threaded rotating shaft 6; the fourth gear 802 is rotatably limited and installed between the two lifting rings 104, and the medicine discharge pipe 105 is correspondingly in rotation connection with the water guide sleeve 801; the sealing plug 2 comprises a central fulcrum 201 and a sliding sleeve 203, the central part of the top end of the sealing plug 2 is supported and welded with the central fulcrum 201, the top end of the central fulcrum 201 forms an included angle of 90 degrees and is vertically welded with two sliding sleeves 203, the sliding sleeve 203 on the rear side correspondingly engages and slides on the threaded rotating shaft 6, the sliding sleeve 203 on the left side correspondingly engages and slides on the vertical support post 103, and the threaded rotating shaft 6 can be screwed to push the sealing plug 2 to slide downwards to extrude and discharge the liquid medicine in the medicine containing cylinder 1. The sealing plug 2 further comprises a rack 202 and a top wheel 204, the top end of the sealing plug 2 is also welded with the rack 202 at one position through vertical support, the rack 202 slides upwards to be in meshing contact with the first gear 102, the top wheel 204 is supported and installed on the sliding sleeve 203 at the left side, the rack 202 is used for driving the vertical support sliding rod 7 to slide downwards through linkage and meshing in the process that the sealing plug 2 slides upwards, the sliding sleeve of the check ring 701 is blocked and sealed on the water sprinkling disc 8, the phenomenon that liquid medicine is filled into the medicine containing barrel 1 is avoided, the liquid medicine is leaked from a circle of water sprinkling hole on the water sprinkling disc 8, the check ring 701 is driven by upward sliding power of the sealing plug 2 in a linkage mode, an electric driving device is omitted for the check ring 701, the trouble that the manual sliding downwards is driven to move is avoided, the use is convenient and. L form vaulting pole 4 includes ship type switch 401, a ship type switch 401 is installed to L form vaulting pole 4's bottom tail end, and this ship type switch 401 directly corresponds with push-up pulley 204 from top to bottom, and goes up on the push-up pulley 204 and push away the contact with ship type switch 401 top, ship type switch 401 and motor 5 electric control connection, through push-up pulley 204, but sealing plug 2 linkage push away control ship type switch 401 is closed at the in-process that goes up the pull-out of going up, has saved the step that manual press switch stopped motor 5, has simplified the use operating procedure of equipment.

Preferably, the vertical supporting slide rod 7 comprises a retainer ring 701, the tail end of the vertical supporting slide rod 7 is fixedly welded with the retainer ring 701, a layer of rubber sealing gasket is fixedly glued on the circumferential inner wall of the retainer ring 701, the retainer ring 701 is arranged above the top end of the sprinkling disc 8 in a sliding mode when the sprinkler is idle, and the sealing plug 2 can be meshed with the first gear 102 in a vertical sliding mode to drive the vertical supporting slide rod 7 and the retainer ring 701 to lift and slide to complete opening and closing of the sprinkling disc 8; the water sprinkling disc 8 comprises a water guide sleeve 801 and a fourth gear 802, a circle of water sprinkling holes are formed in the circumferential outer wall of the water sprinkling disc 8, the top end of the water sprinkling disc 8 is welded and communicated with the water guide sleeve 801, the top end section of the water guide sleeve 801 is sleeved with the fourth gear 802, the threaded rotating shaft 6 can rotatably drive the fourth gear 802 and the water sprinkling disc 8 to sprinkle the liquid medicine on the inner water storage surface of the sewage treatment equipment in a rotating mode, the liquid medicine can be evenly sprinkled in the sewage in a radial mode under the splashing effect of the rotating centrifugal force, the liquid medicine can be fully and comprehensively contacted and mixed with the sewage, and the medicine adding using effect is good; the top end section of the vertical supporting sliding rod 7 is provided with a row of tooth grooves, the tooth grooves are correspondingly in meshing contact with the first gear 102, the fourth gear 802 is correspondingly in meshing contact with the second gear 601, through power transmission of the third gear 602, the thread rotating shaft 6 can rotatably drive the sprinkling disc 8 while the thread pushes the sealing plug 2 to slide up and down, the device is dual-purpose, kinetic energy of the motor 5 is fully utilized, an electric motor which is independently matched with the sprinkling disc 8 is omitted, weight and cost of the device are reduced, and the device is beneficial to market popularization.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A control method for the dosage of sewage treatment is characterized in that: the sewage treatment chemical adding amount control method is realized by sewage treatment chemical adding amount control equipment, and specifically comprises the following steps:

the end cover (3) is locked and tightly installed on the top end opening of the sewage equipment container, the sealing plug (2) is in a lifting, pumping and releasing state and is arranged above the top end of the medicine containing cylinder (1) when the device is idle, liquid medicine is filled into the medicine containing cylinder (1) when the device is used, then the motor (5) is controlled by the start button to rotate forward and start, the thread rotating shaft (6) can be used for pushing the sealing plug (2) to slide downwards to extrude and discharge the liquid medicine in the medicine containing cylinder (1), the liquid medicine in the medicine containing cylinder (1) can be sprayed out through the water spraying disc (8) after being discharged, the thread rotating shaft (6) can also rotate and drive the water spraying disc (8) when the thread pushing the sealing plug (2) slides up and down through the power transmission of the third gear (602), the water spraying disc (8) can rotate and spray the liquid medicine on the inner water storage surface of the sewage treatment equipment, and under the throwing effect, the liquid medicine can be radially and uniformly distributed in sewage, so that the liquid medicine is more fully and comprehensively contacted and mixed with the sewage, the medicine adding using effect is better, the sealing plug (2) can be linked, pushed and controlled to be closed by the ship-shaped switch (401) in the process of upward sliding and pulling out through the top wheel (204), the power supply of the motor (5) is cut off, the sealing plug (2) can be linked, meshed and driven to slide the vertical support sliding rod (7) downwards in the process of upward sliding and pulling out through the rack (202), the retaining ring (701) is blocked and sealed on the water spraying disc (8) in a sliding way, the situation that the liquid medicine leaks from a circle of holes on the water spraying disc (8) when the liquid medicine is filled into the medicine containing barrel (1) is avoided, and the retaining ring (701) is driven to slide downwards through the upward sliding power linkage of the retaining ring (2), and the trouble that the; the dosage can be controlled by the downward pushing and sliding length of the sealing plug (2);

the sewage treatment dosing amount control equipment comprises a medicine containing barrel (1), wherein the medicine containing barrel (1) comprises a vertical support square rod (101), a first gear (102), a vertical support pillar (103), a lifting ring (104) and a medicine discharge pipe (105), the medicine containing barrel (1) is welded at the center of the top end of an end cover (3) in a supporting mode, the center of the bottom of the medicine containing barrel (1) is welded and communicated with the medicine discharge pipe (105), and a sprinkling disc (8) is connected to the bottom section of the medicine discharge pipe (105) in a sleeved and rotating mode; a vertical support square rod (101) is in top support welding on the circumferential outer wall of the medicine containing barrel (1), a first gear (102) is rotatably installed at the top end of the vertical support square rod (101), and a vertical support pillar (103) is fixedly welded on the circumferential outer wall of the medicine containing barrel (1); two hanging rings (104) which are spaced up and down are welded at the center of the bottom of the medicine containing barrel (1), and an L-shaped stay bar (4) is welded downwards at the top end of a vertical support pillar (103); a round cake-shaped sealing plug (2) is plugged and installed in the medicine containing barrel (1); a vertical support sliding rod (7) penetrates and is inserted into the end cover (3) through a spring pushing device, and a motor (5) is installed on the rear side of the top end of the end cover (3) in a locking mode; a threaded rotating shaft (6) is also vertically inserted and installed on the circumferential outer wall of the end cover (3), external threads are formed on the upper half section of the threaded rotating shaft (6), and the vertical support square rods (101), the vertical support pillars (103) and the threaded rotating shaft (6) are distributed around the medicine containing barrel (1) at intervals; the threaded rotating shaft (6) comprises a second gear (601) and a third gear (602), the second gear (601) is sleeved on the lower half section of the threaded rotating shaft (6), the second gear (601) is correspondingly in meshed transmission with the motor (5), and the third gear (602) is sleeved at the lowest end of the threaded rotating shaft (6); the sealing plug (2) comprises a central fulcrum shaft (201) and a sliding sleeve (203), the central position of the top end of the sealing plug (2) is supported and welded with the central fulcrum shaft (201), the top end of the central fulcrum shaft (201) forms a 90-degree included angle, and two sliding sleeves (203) are vertically welded, wherein the sliding sleeve (203) on the rear side is correspondingly engaged with and slid on the threaded rotating shaft (6), and the sliding sleeve (203) on the left side is correspondingly engaged with and slid on the vertical support pillar (103); the sealing plug (2) further comprises a rack (202) and a top wheel (204), the top end of the sealing plug (2) is also vertically supported and welded with the rack (202), the rack (202) slides up to be in meshing contact with the first gear (102), and the left sliding sleeve (203) is supported and provided with the top wheel (204); l form vaulting pole (4) are including ship type switch (401), a ship type switch (401) is installed to the bottom tail end of L form vaulting pole (4), and straight corresponding about this ship type switch (401) and push-up pulley (204), and goes up on push-up pulley (204) and push away the contact with ship type switch (401), ship type switch (401) and motor (5) electric control are connected.

2. The chemical dosage control method for sewage treatment according to claim 1, characterized in that: the vertical supporting slide rod (7) comprises a check ring (701), the tail end of the vertical supporting slide rod (7) is fixedly welded with the check ring (701), a layer of rubber sealing gasket is fixedly bonded on the circumferential inner wall of the check ring (701), and the check ring (701) is arranged above the top end of the sprinkling disc (8) in a sliding mode when the vertical supporting slide rod is idle; the water sprinkling disc (8) comprises a water guiding sleeve (801) and a fourth gear (802), a circle of water sprinkling holes are formed in the outer wall of the circumference of the water sprinkling disc (8), the top end of the water sprinkling disc (8) is welded and communicated with the water guiding sleeve (801), and the top end section of the water guiding sleeve (801) is sleeved with the fourth gear (802).

3. The chemical dosage control method for sewage treatment according to claim 2, characterized in that: the fourth gear (802) is rotatably limited and installed between the two lifting rings (104), and the medicine discharge pipe (105) is correspondingly sleeved and rotatably connected with the water guide sleeve (801); the top end section of the vertical support sliding rod (7) is provided with a row of tooth grooves, the tooth grooves are correspondingly in meshing contact with the first gear (102), and the fourth gear (802) is correspondingly in meshing contact with the second gear (601).